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Finding the Fourth Proportional to 124,559.40, 186,903.90 and 54,445.80

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Solution

The fourth proportional to 124,559.40, 186,903.90 and 54,445.80 is: 81,697.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,559.40 : 186,903.90 = 54,445.80 : x
  2. Step 2: Convert to fraction form
    124,559.40/186,903.90 = 54,445.80/x
  3. Step 3: Cross multiply
    124,559.40x = 186,903.90 × 54,445.80
  4. Step 4: Simplify right side
    124,559.40x = 10,176,132,358.62
  5. Step 5: Solve for x
    x = 10,176,132,358.62/124,559.40
  6. Step 6: Final answer
    x = 81,697.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.